title: Respiratory drive during exercise in chronic obstructive lung disease.
mesh_terms: D002245:Carbon Dioxide; D005652:Functional Residual Capacity; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000503:physiopathology*; D008297:Male; D005082:Physical Exertion; D012119:Respiration; D012129:Respiratory Function Tests
chemical_list: D002245:Carbon Dioxide